maureen naylor, ktvu channel 2 news. >>> we have more breaking news now. a potential traffic problem during the height of the commute this evening, a key intersection in san francisco is blocked right now with protesters. sal castaneda is live at the scene of the castro district with more of what's going on. >> reporter: right now market street is completely blocked here at castro as about 12 dozens protesters have unfurled a banner. they are protesting against employment discrimination. they say the house of congress has held up. they are especially angry with nancy pelosi with what they say are stalling tactics that would not carry the bill that would end this employment discrimination throughout the country. they say in many states it is perfectly legal to get fired just for being gay or lesbian and they are out here making their opinions heard. meanwhile, market street has been shut down for several blocks. we have about 25 to 30 police officers here. right now they are just watching, we are also watching a bunch of frustrated drivers start honking the